Frank rhind



(No Model.)

P. RHIND'.

ARGAND LAMP.

No. 443,868. Patented Dec. 30, 1890.

UNITED STATES PATENT QFFICE.

FRANK RHIND, F MERIDEN, CONNECTICUT, ASSIGN OR OF ONE-HALF TO THE EDWARD MILLER & COMPANY, OF SAME PLACE.

ARGAND LAMP.

SPECIFICATION forming part of Letters Patent No. 443,868, dated December 30, 1890.

Application filed September 13, 1889. Serial No. 323,887. (No model.)

To all whom it may concern:

Be it known thatI, FRANK RHIND, a citizen of the United States, residing at Meriden, New Haven county, Connecticut, have invented a new and useful Improvement in Argand Lamps, of which the following is a specilication.

My invention is intended to improve the combustion and to simplify the wick-adjusting mechanism in Argand lamps.

In the accompanying drawings, Figure 1 represents in vertical section part of an Argand lamp-burner embodying my invention. Fig. 2 shows in perspective the wick-adj usting mechanism detached from the burner. Fig. 3 shows in vertical section a portion of an Argand lamp provided with a modified form of air-distributer. Fig. 4 is a perspective view of a detached portion of the burner shown in Fig. 1.

The same letters refer to like parts in the several views.

- not now describe them in detail.

A designates a burner-body; a, a screwthread at the lower end of the burner-body A; B, a foraminous skirt; 0, an inner wick-t ube; c, a groove or recess in the tube 0; D, a tube connecting the body A and tube 0; E, a wickadjusting sleeve; 0, teeth on the sleeve E; e e, notches in the sleeve E; e, a pivot on the sleeve E; F an'inner and F an outer drawbar pivoted at f; G, a foraminous plate in the tube 0.

The example of my invention illustrated in the drawings is constructed and operated as follows:

The burner-body A,with its screw-tlueaded lower portion a, foraminous skirt B, inner wick-tube C, and connecting-tube D, as here shown, are similar to the corresponding parts described in my pending application, Serial No, 309,566, As their peculiar construction forms no part of my present invention, I will The wicktube C is formed with a longitudinal reentering groove or recess 0, extending to its lower end. The wiek'adjusting sleeveE is of an in* terior diameter slightly greater than the exterior diameter of the wick-tube O, and so as to move freely thereon. It is notched or cut away at c to pass the port-tube D. It may also be advantageouslyprovided at its upper edge with teeth 6, adapted to engage with the wick. It is further notched or cut away at e" and provided at the upper end of the notch c with a pivot or hinge 6'. From the hinge or pivot 6' depends the inner drawbar F, which swings into the notch e" and recess c. Pivotally attached at f to the inner draw-bar F is the outer draw-bar F, which extends upward out of the top of the burner, and may have at its free outer end a knob or convenient handle for the operator. By the use of a draw-bar of this form binding of the wick-sleeve on the tubeis prevented,'asa direct vertical movement may be given to the Wicksleeve at the same time that a wide lateral play is permitted to the knob or handle. By making the draw-bar in two pieces pivotally connected together, the inner portion also pivotally connected to the wick-sleeve, as here shown, an additional advantage is gained.

An Argand burner of the form shown in Fig. 1 of the drawings-w. e., one adapted to screw into the collar of a 1amp-would frequently be used with a lamp having a relatively small collar= opening, an expanding screw being used to connectthe lamp and the burner. \Vith most forms of draw-bar this is impracticable. WVith my device, however, an expanding screw or collar may be used without interfering with the wick movement.

iVithin the wick-tube C, and extending from the lower end of said tube upward, so as to cover the opening of the connecting-tube D, I place a foralninous or reticulate partition I. I have here shown this partition I as standing vertically in the tube 0 and provided at its upper end with a horizontal portion fitting against the side of the tube 0 above the portopening. The shape or position of the partition I is nonessential, so that it extends substantially from apoint below to a point above the port-opening, and so that it may act as a strainer for the air entering at said port.

By placing this foraminous partition within 9 the tube 0 instead of the conneetingtube D, I am enabled to make the partition of consider ably greater area than the cross-section of the tube D, and consequently to provide a much greater number of perforations than would be ICO possible under the older and well known method. I also find that the air is much more evenly distributed to the flame than is the case where a horizontal foraminous plate is placed in the wick-tube above the upper edge of the port.

In a patent granted to me December 3, 1SS9,1\0. $16,237, I have shown a wick-adjusting sleeve slotted or notched to receive the lower end of a pivoted draw-bar. I do not of course claim as my present invention any thing described or claimed in said Letters Patent.

hat I claim as my presentinvention, and desire to secure by Letters Iatent of the United States, is as follows:

1. In an Argand lamp, the combination of a wick-tube, a \vicksleeve adapted to vertical adjustment on said tube and notched or slotted at its lower end, and a d raw-bar adapted to move within said notch or slot, and consisting of two parts pivotally connected together, one of said parts being also pivotally connected to said wick-sleeve, substantially as described.

2. In an Argand lamp, the combination of an. inner wick-tube, a re-entering recess in said tube, a wick-sleeve vertically adjustable on said tube and notched or slotted at its lower end, and a draw bar or stem consisting of two parts pivotally connected together, one of said parts being also pivotally connected to said wick-sleeve above said slot or notch, substantially as described.

5. In an Argand lamp, the combination of a central air-supply tube, a connecting-tube opening into said central tube, and a foraminous or rcticulate partition within said central tube, covering the open end of said connecting-tube, the area of said partition being greater than the cross-section of said connecting-tube, si'lbstantially as described.

FRANK RIIINIX Witnesses 1 Geo. L. Cooncu,

J. Rom. 

